Marin County, California Population 2020

Marin County, California's estimated population is 259,725 with a growth rate of -0.35% in the past year according to the most recent United States census data. Marin County, California is the 26th largest county in California.

Year Population Growth Growth Rate
2018259,666-59-0.02%
2017259,725-908-0.35%
2016260,633-383-0.15%
2015261,0165810.22%
2014260,4351,9820.77%
2013258,4532,3810.93%
2012256,0727090.28%
2011255,3632,4580.97%
2010252,90522,8099.91%
1990230,0967,5283.38%
1980222,56816,5308.02%
1970206,03859,21840.33%
1960146,82061,20171.48%
195085,61932,71261.83%
194052,90711,25927.03%
193041,64814,30652.32%
192027,3422,2288.87%
191025,1149,41259.94%
190015,7022,63020.12%
189013,0721,74815.44%
188011,3244,42164.04%
18706,9033,569107.05%
18603,3343,011932.20%
18503230.00%

Marin County, California Population Growth

Population by Race

Race Population Percentage
White203,34278.12%
Some Other Race22,2628.55%
Asian15,0005.76%
Two or More Races12,6614.86%
Black or African American5,7092.19%
American Indian and Alaska Native7370.28%
Native Hawaiian and Other Pacific Islander5840.22%

Marin County, California Population Pyramid 2020

Marin County, California Median Age

46.5


Total

45


Male

48.1


Female

Marin County, California Adults

There are 207,387 adults, (54,625 of whom are seniors) in Marin County, California.

Marin County, California Age Dependency

70.4

Age Dependency Ratio

35.8

Old Age Dependency Ratio

34.6

Child Dependency Ratio

Marin County, California Sex Ratio

Female

133,182

51.17%

Male

127,113

48.83%

Marin County, California Households and Families

Marin County, California Renter vs Owner Occupied by Household Type

Marin County, California Household Types

Type Owner Renter
Married76.7%23.3%
All63.8%36.2%
Male51.6%48.4%
Female51.4%48.6%
Non Family50%50%

63.8%

Rate of Home Ownership

Type Count Average Size Owned
All105,2582.463.8
Married53,7723.0476.7
Non Family39,5731.2950
Female8,1443.2151.4
Male3,7693.3151.6

2.97

Average Family Size

2.4

Average Household Size

5%

Unmarried (Opposite Sex)

0.3%

Unmarried (Same Sex)

Marin County, California Education

Education Attained Count Percentage
Less Than 9th Grade7,3663.87%
9th to 12th Grade5,5172.90%
High School Graduate20,85810.95%
Some College32,40517.01%
Associates Degree12,3776.50%
Bachelors Degree63,26133.20%
Graduate Degree48,75725.59%

Marin County, California Educational Attainment by Race

Name Total High School Bachelors
White144,477141,17794,892
Hispanic24,16216,2815,392
Other Race12,1216,8541,425
Asian12,02011,0917,637
Multiple Races5,9305,6983,029
Black4,1733,5421,295
Native American58346468
Islander36623513

The highest rate of high school graduation is among white people with a rate of 97.72%.

The highest rate of bachelors degrees is among white people with a rate of 65.68%.

Name Average Male Female
Overall$61,688$74,830$51,371
Less Than High School$22,733$26,130$19,268
High School Grad$34,681$40,413$28,842
Some College$44,417$51,515$37,383
Bachelors Degree$78,195$104,334$58,641
Graduate Degree$97,673$126,015$79,332

$61,688

Average Earnings

$74,830

Average Male

$51,371

Average Female

Marin County, California Language

Marin County, California Language by Age

Marin County, California Language

77.27% of Marin County, California residents speak only English, while 22.73% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 12.43% of the population.

Marin County, California Poverty

Marin County, California Poverty by Race

Name Total In Poverty Poverty Rate
White183,7398,7804.78%
Hispanic39,2507,42318.91%
Other20,7485,34225.75%
Asian14,5281,2258.43%
Multiple12,0471,1299.37%
Black4,67379316.97%
Islander50427855.16%
Native66610615.92%

7.61%

Overall Poverty Rate

6.77%

Male Poverty Rate

8.39%

Female Poverty Rate

Poverty in Marin County, California

The race most likely to be in poverty in Marin County, California is Islander, with 55.16% below the poverty level.

The race least likely to be in poverty in Marin County, California is White, with 4.78% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.25%. Among those working part-time, it was 8.93%, and for those that did not work, the poverty rate was 13.90%.

Name Poverty
Less Than High School27.25%
High School10.28%
Some College6.89%
Bachelors or Greater3.78%
Name Poverty
Female Unemployed24.76%
Male Unemployed15.38%
Female Employed4.88%
Male Employed3.04%

Marin County, California Income

Marin County, California Income by Household Type

Name Median Mean
Households$110,217$168,429
Families$147,878$207,489
Married Families$166,216$228,833
Non Families$61,436$97,624

Marin County, California Marital Status

Marin County, California Marital Status

Marriage Rates

52.8%

Overall Marriage Rate

55.9%

Male Marriage Rate

50.0%

Female Marriage Rate

Marin County, California Married by Age and Sex

Marin County, California Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Marin County, California Marital Status by Race

Marin County, California Veterans

11,373

Number of Veterans

10,793

Male Veterans

580

Female Veterans

War Veterans
Vietnam4,635
Korea1,464
Second Gulf War1,207
First Gulf War983
World War II936
Name Veterans % of Total
White9,7625.86%
Hispanic6022.14%
Black4619.67%
Asian3882.97%
2 or More3554.97%
Other3002.04%
Indian9215.38%
Hawaiian153.98%

$Marin County, California Veterans by Education

3.00%

Veteran Poverty Rate

28.56%

Veteran Disability Rate

Marin County, California Employment Status

64.2%

Labor Force Participation

61.7%

Employment Rate

3.8%

Unemployment Rate

Marin County, California Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

49.68%

Born in California

81.56%

Native Born

18.44%

Foreign Born

9.74%

Non Citizen

Place of Birth

81.56% of Marin County, California residents were born in the United States, with 49.68% having been born in California. 9.74% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990